regex101: OmegaT

^start of line

\p{Zs}*a space separator with non-zero width, repeated any number of times

Group 1(<(?:/?[xg]\d|[xg]\d/)>\p{Zs}*)+

+repeats the group contents below at least once:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Non-Capturing Group(?:/?[xg]\d|[xg]\d/)

1st Alternative/?[xg]\d

/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[xg]

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

gthe literal g (103₁₀ / 147₈ / 67₁₆) (case sensitive)

\da digit

2nd Alternative[xg]\d/

Character Class[xg]

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

gthe literal g (103₁₀ / 147₈ / 67₁₆) (case sensitive)

\da digit

/the literal / (47₁₀ / 57₈ / 2F₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\p{Zs}*a space separator with non-zero width, repeated any number of times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

^\p{Zs}*(<(?:/?[xg]\d|[xg]\d/)>\p{Zs}*)+\p{Zs}*$

New

<x1/>
<x1/><x2/>
<g1></g1>

<x1/><g1></g1>
<x1/><x1/><x2/>

 <x1/>
 <x1/><x2/>
 <g1></g1>

 <x1/><g1></g1>
 <x1/><x1/><x2/>


<x1/> 
<x1/><x2/> 
 <g1></g1> 
<g1> </g1>
 <g1> </g1>
<g1> </g1> 

 <x1/><x1/><x2/>
 <x1/> <x1/><x2/>
 <x1/><x1/> <x2/>
 <x1/><x1/> <x2/> 
 <x1/> <x1/> <x2/>
 <x1/> <x1/> <x2/> 
<x1/> <x1/> <x2/>
<x1/> <x1/> <x2/> 
<x1/><x1/> <x2/>
<x1/><x1/> <x2/> 

 <x1/>
 <x1/><x2/>
 <g1></g1>

 <x1/><g1></g1>
 <x1/><x1/><x2/>


<x1/> 
<x1/><x2/> 
 <g1></g1> 
<g1> </g1>
 <g1> </g1>
<g1> </g1> 

 <x1/><x1/><x2/>
 <x1/> <x1/><x2/>
 <x1/><x1/> <x2/>
 <x1/><x1/> <x2/> 
 <x1/> <x1/> <x2/>
 <x1/> <x1/> <x2/> 
<x1/> <x1/> <x2/>
<x1/> <x1/> <x2/> 
<x1/><x1/> <x2/>
<x1/><x1/> <x2/>